Lack of Sleep Linked to Weight Gain For New Moms
Sleep is essential. It is the time when our bodies
replenish, repairing the mental and physical
wear-and-tear we suffer during the day. However, our
"always-on" culture has created a sleep-deprived
generation. Cell phones, computers, PDAs and 24-hour
cable television keep our brains stimulated. The result
is fatigue, poor health and, surprisingly, weight gain.
According to a study conducted by Kaiser Permanete and
Harvard Medical School/Harvard Pilgrim Health Care, it
was found that moms who got less than five hours of
sleep a day when their babies were 6 months old were
three times more likely to be carrying 11 extra pounds
at the child's first birthday than those who get seven
hours. The bottom line –- those extra two hours of sleep
could make all the difference.
Other studies have shown that persistent sleep
deprivation causes hormonal changes that may stimulate
appetite.
Sleep, Hormones and Weight Gain
Leptin and Grehlin are hormones that help the body
control appetite and weight gain and loss. Leptin
suppresses appetite, while Grehlin increases appetite
and may prevent a person from losing weight.
When lack of sleep becomes a chronic problem, levels of
Grehlin increases, causing greater appetite, and levels
of Leptin decrease. Regardless of diet and exercise,
it's possible that some obesity is caused, or made
worse, by sleep deprivation.
Research subjects who slept only four hours a night for
two nights had an 18 percent decrease in leptin, a
hormone that tells the brain there is no need for more
food, and a 28 percent increase in ghrelin, a hormone
that triggers hunger.
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